Tilting sash with sliding panel



Sept. 23, 1969 J. P. MALMROSE ET 3,468,059

TILTING SASH WITH SLIDING PANEL Filed May 6, 1968 2 Sheets-Sheet 1 FIG; si o 1/ 52 la T4 10 46/) I //4 l 3 82%:

M W x; 30 r52 2 INVENTORS J. R MALMROSE 8 B.A.PETERSON Sept. 23, 1969 J. P. MALMROSE ET AL 3,468,059

TILTING SASH WITH SLIDING PANEL Filed May 6, 1968 2 Sheets-Sheet 1:

FIG. 4

INVENTORS J. P. MALMROSE 8 B. APETERSON United States Patent 3,468,059 TILTING SASH WITH SLIDING PANEL John P. Malmrose and Bulow A. Peterson, Kewanee, Ill.,

assignors to Kewanee Mfg. Co., Kewanee, III., a corporation of Illinois Filed May 6, 1968, Ser. No. 726,912 Int. Cl. Ed 15/48, 15/22 U.S. Cl. 49164 1 Claim ABSTRACT OF THE DISCLOSURE A tilting sash carried by a frame and including a pair of glazed panels occupying the total area of the sash, one of the panels being fixed and the other being slidable to an open position and a screen selectively covered and uncovered by the sliding panel. Besides being tiltable to a partly open position, the entire sash is easily removable from its frame.

BACKGROUND OF THE INVENTION struction that is simpler and less expensive in design and that has added features.

SUMMARY OF THE INVENTION The construction provided according to the invention features a sash that is easily and simply mounted for hinging between closed and partly open positions without the need for complicated hinge means. The sash is additionally fully glazed, but one of the glass panels is slida-ble to one side into overlapping relationship to the fixed panel so as to uncover a permanently mounted screen, thus giving the user a choice of ventilation through a screened opening or through the tilted sash or both, in addition to which the sash, when tilted inwardly from the sash stop of the frame, is limited by stop means but is nevertheless bodily removable without the need for unfastening any pivots, hinge means, locks, etc. The sash further features a strong, light-Weight low-cost construction in which the rails and jams are peripherally outwardly facing channels adapted to receive and be rigidly secured to corner joint elements, whereby the entire structure may be fabricated of simple metal and/or plastic extrusions, moldings, etc.

DESCRIPTION OF THE DRAWINGS FIG. 1 is an elevation, on a reduced scale, of the complete window;

FIG. 2 is an enlarged fragmentary section as seen along the line 2-2 of FIG. 1;

FIG. 3 is an enlarged section as seen along the line 3-3 of FIG. 1;

FIG. 4 is an enlarged section, with portions omitted and portions in elevation, showing the mounting and tiltability of the sash;

FIG. 5 is an enlarged section on the line 55 of FIG. 4;

FIG. 6 is a perspective of one of the corner joint elements; and

FIG. 7 is a fragmentary view of one of the guides for the sliding panel.

DESCRIPTION OF A PREFERRED EMBODIMENT The numeral 10 designates in its entirety a rectangular frame, preferably of steel or other appropriate material, having upper and lower elongated horizontal rails 12 and 14 and opposite, somewhat shorter vertical jambs 1'6 and 18. The configuration of the frame is such that its longer dimension is horizontal, thus adapting it for use in con structional environments already noted. The frame may be secured in a typical opening, not shown, in any manner not material here. A sash 20 of complementary rectangular shape is received within the frame opening and has upper and lower rails 22 and 24, opposite end jambs 26 and 28 and a central muntin bar 28. The frame 10 includes an interior peripheral sash stop 32, facing inwardly as respects the building in which the window is installed and against which the sash 20 abuts when closed (FIGS. 2 and 4). The bottom rail 14 of the frame 10 is formed as a trough or channel 34 in which the bottom rail 24 of the sash is received, the interior wall of the trough being upwardly and inwardly inclined at 36 (FIG. 4) so that the sash may be tilted to a part open position as shown in dotted lines in FIG. 4, being stopped in that position by stop means including a pin 38 in each of the frame jambs 16 and 18.

The sash is retainable in closed and locked position by a pair of longitudinally spaced apart upper latches 40, the details of which are best seen in FIG. 3. The upper sash rail 22 is a metal extrusion affording an outer channel 42 of squared C-shape provided with a pair of lips 44 directed toward each other, all of the rails and jambs being similarly provided so that the channels therein corresponding to that at 42 open peripherally outwardly. Each latch is in the form of a spring steel member bent as shown so as to be receivable in the channel and retained by the lips 44, the latch extending inwardly of the building as a tongue having a nose 46 engageable with a lug 48 struck downwardly from a portion of the upper frame rail 12. The inherent bias in the latches retains the engagement at 4648 and the user, to operate the sash, merely pulls down on the latches 40 to release the noses 46 from the lugs 48, the sash then pivoting inwardly in the trough 34 until it strikes the stop pins 38, it being clear that the weight of the sash retains its engagement with the trough. When the sash is swung to its ajar position (broken lines, FIG. 4), its top rail 22 easily clears the frame top rail 12 within the building and the sash may be removed by lifting it bodily from the trough 34 and past the pins 38. Thus is provided a simple tilt construction avoiding the use of complicated pivots, hinges, releases, etc. At the same time, the sash is easily swingable between its closed and ajar positions.

The muntin bar 30 divides the total sash area into two substantially equal halves, one of which (here lefthand) is occupied by a fixed glazed panel 50 and the other (right-hand) of which is occupied by a fixed screened panel 52. These panels may be mounted in any suitable manner, the former by typical glazing molding as at 54 and the latter by means of an elastomer peripheral bead 56 forced into a complementary groove 58 formed in the related sections of the top and bottom sash rails, the muntin bar and the associated sash jamb, the screen edges being rolled into this groove before the bead 56 is applied (FIGS. 2 and 3). Reference to the panels 50 and 52 as fixed is with reference to their normal condition, because of course they can be removed for repair and replacement.

Supplementing these two panels is a second glazed panel 60 carried in a frame 62 and mounted by corner guides 64 (see FIG. 7) to slide in upper and lower tracks formed respectively in the upper and lower sash rails 22 and 24. The upper track appears at 66 in FIG. 3 and the lower track at 68 in FIG. 2. These guides 64 may be of any suitable guide material, such as nylon, etc. The sealing relationship between the sliding sash frame 62 and the frame for the screen as made u by the rectangularly related portions of the muntin bar 30, top and bottom sash rails 22 and 24 and right-hand sash jamb 28 is accomplished in any known manner, here as by a peripheral border of Schlegel cloth 70. A suitable peripheral outer seal may be provided at 72 between the outer face of the sash and the inner face of the sash stop 32. By means of the guides 64, the second glazed panel 60 is slidable from right to left and back again to respectively uncover and cover the screened panel 52. Slidability of this movable panel may be accomplished with the sash either fully closed or ajar, depending upon the variety or type of ventilation desired. The panels are fully selfcontained within the sash and the sash may be removed from the frame 10, as previously described, without disturbing the panels.

The sash rails and jambs, being provided wth the outwardly facing peripheral channel 42, with the inwardly directed or overhanging lips 44, lend themselves to improved corner joints, which is achieved by four corner elements, one of which is shown by itself in FIG. 6 and designated by the numeral 74. Each such element may be readily cut from an extrusion of aluminum, for example, having such angular section that each element has a pair of right-angle-related legs 76 wide enough to fit the respective channel 42 quite closely and of a thickness to tightly fit beneath the overhanging lips 44, thus accomplishing a tight press fit. In addition, the outer portion of each leg 76 is of corrugated configuration, having a plurality of teeth or ribs 78. The lips 44 may be staked inwardly by punching, for example, to cause a plurality of inward rojections 80 to grip the element 74 between teeth, thus rigidly confining the elements in place and completing the rigid light-weight sash frame.

Since the sash rails, etc. are easily formerly from simple extrusions, for example, the necessary configurations may be readily obtained and the panels 50, 52 and 60 are thus simply mounted to provide a strong, light-weight and durable structure. Resort to aluminum and similar metals, in conjunction with other corrosion-resistant materials, especially in the guides, etc., assure a window of 4 long life. The sliding panel is easily locked and unlocked by any suitable type of lock as at 82 (FIG. 1).

What is claimed is:

l. A window comprising a rectangular frame having upper and lower rails and opposite vertical jambs and including a sash stop facing inwardly of the frame said lower rail including a trough, a rectangular sash dimensioned to be received 'within the frame and having upper and lower rails and opposite vertical jambs, said lower rail resting in the trough for rockably mounting the sash for swinging toward and away from the sash stop, sash including a fixed glazed panel occupying a first portion of the sash area, a fixed screened panel substantially c0- planar with the fixed glazed panel and occupying a second portion of the sash area, and a movable glazed panel mounted in the sash in parallelism with the screened panel and selectively movable between a first position overlying and covering the screened panel and a second position uncovering said screened panel, means for releasably locking the sash in the frame in abutting relation to the sash stop, limit means on the frame in spaced relation above and inwardly of the trough to enable rocking of the released sash in the trough away from the sash stop to a partially open positon in which the sash directly engages the limit means and, while remaining in and supported by the trough, occupies a part-open position inclining upwardly and inwardly relative to the frame, said limiting means is so constructed and arranged that the upper rail of the sash clears the upper rail of the frame in said part-open positon so that the sash may be lifted bodily out of said trough and removed from said frame.

References Cited UNITED STATES PATENTS 2,381,147 8/1945 Weedon 91 2,449,264 9/1948 Wilkinson 160-9l 2,554,442 5/1951 Ehret 4914l X 2,699,204 1/1955 Davis 16091 2,869,187 1/1959 Liebman et al 160-90 X 3,002,556 10/ 1961 Tourville 49261 X 3,302,332 2/1967 Malmrose et al. 49-261 DENNIS L. TAYLOR, Primary Examiner 

